What is the standard color coding for Audio jacks?

The standard color coding for audio jacks helps to identify the specific function of each port, ensuring that the correct cables are connected to the right devices. Here’s the commonly used color coding for audio jacks on PCs and other devices:

1. Green - Audio Out (Stereo Speakers or Headphones)

• The green jack is typically used for stereo output. This is where you plug in your speakers or headphones.
• It is the most common color used for audio out.

2. Pink - Microphone Input

• The pink jack is used for connecting a microphone to your computer or device.
• This is where you would plug in your headset microphone or any external microphone for voice input.

3. Blue - Line-In (Audio Input)

• The blue jack is used for line-in or audio input. This is where you would connect an external audio source, such as a CD player or guitar (if supported by your device).
• It can be used to receive audio from other devices.

4. Black - Rear Speakers (Surround Sound Systems)

• The black jack is often used for rear speakers in a surround sound system (5.1 or 7.1 setup).
• It is commonly associated with a multi-channel audio setup, typically for home theater systems.

5. Orange - Subwoofer / Center Speaker

• The orange jack is used for the subwoofer or center speaker in a 5.1 surround sound setup.
• It handles low-frequency output for deep bass sounds or the center channel in a multi-speaker system.

6. Gray - Side Speakers (For 7.1 Surround Sound)

• The gray jack is used in 7.1 surround sound systems for connecting side speakers.

7. White - Left Audio Channel (Stereo)

• The white jack is often used for the left audio channel in stereo setups.
• It is typically paired with the red jack for stereo output.

8. Red - Right Audio Channel (Stereo)

• The red jack is typically used for the right audio channel in stereo setups, and it is usually paired with the white jack for stereo output.

Note on Modern Devices:

• Many modern devices use USB or digital audio outputs (e.g., optical or HDMI) instead of traditional analog jacks, but the color coding is still widely used for analog connections.
• Headsets with a single jack often combine the microphone and headphone connections into one TRRS (Tip-Ring-Ring-Sleeve) jack, but it may still follow the color coding.

This standard helps ensure that you connect the correct cables to the corresponding ports for optimal audio performance.